Eaton B-Line series Type 3/3R junction boxes, 24" height, 8" length, 24" width, NEMA 3R, Screw cover, RTSC NK enclosure, Surface mounted, Medium single door, No knockout, Embossed thru holes, Carbon steel
Manufacturer Resources
Product Specs
- Certifications:
- UL 50
- Closure Type:
- Flanged cover
- Country Of Origin:
- United States
- Cover Type:
- Screw
- Finish Color:
- Painted
- Mounting Hole Details:
- Embossed thru holes
- Mounting Method:
- Surface
- Nema Rating:
- 3R
- Product Height:
- 24 in
- Product Length Depth:
- 8 in
- Product Weight:
- 44.5 lb
- Product Width:
- 24 in
- Special Features:
- Rain hood, plated screws
- Wall Thickness:
- 14 gauge
- Department:
- Electrical
- Product Model:
- RTSC NK enclosure
- Product Color:
- ANSI 61 Grey
- Product Style:
- Medium single door
- Product Material:
- Carbon steel
- Product Length:
- 8 in
B-LINE 24248 RTSC NK – Frequently Asked Questions
1) Can the B-Line 24248 RTSC NK junction box be mounted outdoors?
Yes. The 24248 RTSC NK carries a NEMA 3R rating, which covers outdoor use against falling rain, sleet and ice formation. It also has a rain hood over the cover for runoff. It is not a washdown or hosedown enclosure, so keep it out of direct spray and submersion locations.
2) What are the box dimensions on the B-Line 24248 RTSC NK enclosure?
24 inches high, 24 inches wide and 8 inches deep. That 8 inch depth is what decides most installs: it gives room behind terminal blocks or a small sub-panel, but check your conductor bending space before you commit. The box weighs 44.5 lb empty, so plan a two-person lift or unistrut backing on a stud wall.
3) Does this Eaton B-Line 3R junction box come with knockouts?
No. The NK in 24248 RTSC NK means no knockout, so every conduit entry is drilled or punched by the installer. That is the point of the NK version: you place the holes where your run lands and keep the 3R integrity by using rated hubs or fittings, ideally on the bottom or sides rather than the top.
4) How is this 24 x 24 x 8 B-Line enclosure attached to the wall?
Surface mount, using embossed thru holes in the back of the box. The embossing keeps the fastener heads off the mounting surface so water cannot track into the enclosure through the hardware. Fasteners and any standoff or strut hardware are supplied by the installer, sized to the 44.5 lb empty weight plus whatever you put inside.
5) What gauge steel and finish is the B-Line 24248 RTSC NK?
14 gauge carbon steel with a painted ANSI 61 grey finish. That is the standard industrial grey most switchgear and control gear is specified in, so it will match adjacent panels on a plant or utility wall. Painted carbon steel is fine for general outdoor and industrial use but is not the pick for coastal salt or chemical exposure, where stainless is specified instead.
6) Is this B-Line junction box UL listed for a spec job?
The 24248 RTSC NK is built to UL 50, the standard covering enclosures for electrical equipment, and it is made in the US. Submit it as a NEMA 3R, UL 50 screw cover enclosure in 14 gauge carbon steel when the drawing calls for an outdoor pull or junction box.
7) Can I mount a panelboard or breakers inside this 24248 RTSC NK box?
Treat it as a wireway and junction box rather than an equipment enclosure. It is sold as a medium single door screw cover box with no interior panel included, so any back panel, DIN rail or mounting hardware is a separate order. At 8 inches deep there is usable room for terminal blocks and splices, but confirm the device depth and your bending space first.
8) What is the difference between an NK and a knockout version of the B-Line RTSC box?
Same 24 x 24 x 8 carbon steel 3R box either way; the NK version ships with a blank body so you set your own conduit entries. Order the NK when your conduit layout does not match a factory knockout pattern or when you want the fewest possible openings on a rain-exposed box. Order a knockout version when you want standard trade-size entries ready to go and no field drilling.
How fast can I get the B-LINE 24248 RTSC NK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE 24248 RTSC NK come with a warranty?
Absolutely. The B-LINE 24248 RTSC NK is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE 24248 RTSC NK?
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